104020221 has 8 divisors (see below), whose sum is σ = 143167744. Its totient is φ = 67109760.

The previous prime is 104020219. The next prime is 104020223. The reversal of 104020221 is 122020401.

It is an interprime number because it is at equal distance from previous prime (104020219) and next prime (104020223).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 104020221 - 2¹ = 104020219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104020197 and 104020206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104020223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 559156 + ... + 559341.

It is an arithmetic number, because the mean of its divisors is an integer number (17895968).

Almost surely, 2^104020221 is an apocalyptic number.

It is an amenable number.

104020221 is a deficient number, since it is larger than the sum of its proper divisors (39147523).

104020221 is a wasteful number, since it uses less digits than its factorization.

104020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118531.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 104020221 is about 10199.0303950915. The cubic root of 104020221 is about 470.2974139913.

Adding to 104020221 its reverse (122020401), we get a palindrome (226040622).

The spelling of 104020221 in words is "one hundred four million, twenty thousand, two hundred twenty-one".